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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4748 PID: SPN: 3217 FMI: 21 Aftertreatment Intake Oxygen Sensor- Data Not Rational- Drifted Low

Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4749 PID: SPN: 3227 FMI: 20 Aftertreatment Outlet Oxygen- Data Not Rational- Drifted High

Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4751 PID: SPN: 3227 FMI: 21 Aftertreatment Outlet Oxygen- Data Not Rational- Drifted Low

Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4768 PID: SPN: 3521 FMI: 11 Aftertreatment 1 Diesel Exhaust Fluid Property- Root Cause Not known

Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4769 PID: SPN: 1761 FMI: 10 Aftertreatment 1 Diesel Exhaust Fluid Tank Level Sensor- Abnormal Rate of Change

Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4839 PID: SPN: 3667 FMI: 31 Engine Air Shutoff- Condition Exists

Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4842 PID: SPN: 3364 FMI: 15 Aftertreatment Diesel Exhaust Fluid Quality- Data Valid But Above Normal Operating Range- Least Severe Level

Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4951 PID: SPN: 6655 FMI: 3 Maintain ECU Power Lamp Circuit- Voltage Above Normal or Shorted to High Source

Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4952 PID: SPN: 6655 FMI: 4 Maintain ECU Power Lamp Circuit- Voltage Below Normal or Shorted to Low Source

Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4956 PID: SPN: 6713 FMI: 13 Variable Geometry Turbocharger Actuator Software- Out of Calibration